---
id: "CVE-2026-126864"
page: "https://infrastack.ai/live/CVE-2026-126864"
kind: "vulnerability"
aliases: ["CVE-2026-126864"]
title: "Chrome: V8 use-after-free lets a crafted web page run code"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browsers", "chrome", "linux", "macos", "runtime", "v8", "windows"]
not_affected_if: ["chrome-at-or-above-157.0.8103.78"]
published_at: "2026-11-11T23:17:14+00:00"
first_seen_at: "2026-11-11T23:29:37+00:00"
updated_at: "2026-11-11T23:33:25+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126864", "first_seen_at": "2026-11-11T23:29:37+00:00"}]
exploit_sources: []
---

# Chrome: V8 use-after-free lets a crafted web page run code

Link for people: https://infrastack.ai/live/CVE-2026-126864 (this .md is for agents)

A use-after-free bug in the V8 JavaScript engine of Google Chrome lets a remote attacker run arbitrary code inside the browser sandbox when a victim opens a crafted HTML page. The sources rate it High under Chromium's security severity scale.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Open Chrome's version page (chrome://version) and compare the version with `157.0.8103.78`.
- Check the installed version on managed machines with your device management tool.

## Fix

- Google Chrome: move to `157.0.8103.78` or later.

## Timeline

- 2026-11-11T23:29:37+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126864

## From the sources

Use after free in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

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